%0 Journal Article %1 Im:2018:Sci-Rep:29335518 %A Im, J H %A Hong, J B %A Kim, S H %A Choi, J %A Chang, J H %A Cho, J %A Suh, C O %D 2018 %J Sci Rep %K SHOULDREAD astrocytoma cancer-research glioma radiotherapy survival temozolomide %N 1 %P 777-777 %R 10.1038/s41598-017-19014-1 %T Recurrence patterns after maximal surgical resection and postoperative radiotherapy in anaplastic gliomas according to the new 2016 WHO classification %U https://www.ncbi.nlm.nih.gov/pubmed/29335518 %V 8 %X We assessed the appropriateness of current radiotherapy volume for WHO grade III gliomas. The records of 73 patients with WHO grade III gliomas who received postoperative radiotherapy between 2001 and 2013 were retrospectively reviewed. Based on the 2016 WHO classification, 25/73 (34.2%) patients had anaplastic oligodendroglioma (AO), IDH-mutant and 1p/19q-codeleted; 11/73 (15.1%) patients had anaplastic astrocytoma, IDH-mutant; and 37/73 (50.7%) patients had anaplastic astrocytoma, IDH-wildtype. The extent of resection (EOR) was total in 43 patients (58.9%). The median follow-up time was 84 months. The 5-year overall survival was 65.4%. Of 31 patients with documented recurrences, 20 (64.5%) had infield gross tumor volume (GTV) failure, six (19.4%) had clinical target volume (CTV)/marginal failure, and five (16.1%) had outfield failure/seeding. In 13 recurrences among 43 patients who underwent gross total resection (GTR), six (46.2%) had infield CTV/marginal failure. However, among 30 patients for whom GTR was not conducted, infield GTV failure was dominant (77.8%). Seventeen patients with AO, IDH-mutant and 1p/19q-codeleted who underwent GTR experienced no recurrence. In conclusion, maximal surgical resection and postoperative radiotherapy resulted in a favorable prognosis, especially in patients with GTR, IDH mutation, and 1p/19q codeletion. Patterns of failure differed by EOR.

@article{Im:2018:Sci-Rep:29335518, abstract = {We assessed the appropriateness of current radiotherapy volume for WHO grade III gliomas. The records of 73 patients with WHO grade III gliomas who received postoperative radiotherapy between 2001 and 2013 were retrospectively reviewed. Based on the 2016 WHO classification, 25/73 (34.2%) patients had anaplastic oligodendroglioma (AO), IDH-mutant and 1p/19q-codeleted; 11/73 (15.1%) patients had anaplastic astrocytoma, IDH-mutant; and 37/73 (50.7%) patients had anaplastic astrocytoma, IDH-wildtype. The extent of resection (EOR) was total in 43 patients (58.9%). The median follow-up time was 84 months. The 5-year overall survival was 65.4%. Of 31 patients with documented recurrences, 20 (64.5%) had infield gross tumor volume (GTV) failure, six (19.4%) had clinical target volume (CTV)/marginal failure, and five (16.1%) had outfield failure/seeding. In 13 recurrences among 43 patients who underwent gross total resection (GTR), six (46.2%) had infield CTV/marginal failure. However, among 30 patients for whom GTR was not conducted, infield GTV failure was dominant (77.8%). Seventeen patients with AO, IDH-mutant and 1p/19q-codeleted who underwent GTR experienced no recurrence. In conclusion, maximal surgical resection and postoperative radiotherapy resulted in a favorable prognosis, especially in patients with GTR, IDH mutation, and 1p/19q codeletion. Patterns of failure differed by EOR.}, added-at = {2018-05-18T23:50:10.000+0200}, author = {Im, J H and Hong, J B and Kim, S H and Choi, J and Chang, J H and Cho, J and Suh, C O}, biburl = {https://www.bibsonomy.org/bibtex/2c3fc5d027709551f03411739f2f6881b/marcsaric}, description = {Recurrence patterns after maximal surgical resection and postoperative radiotherapy in anaplastic gliomas according to the new 2016 WHO classificat... - PubMed - NCBI}, doi = {10.1038/s41598-017-19014-1}, interhash = {2618836c340fa483f1b3e7fe9d862e45}, intrahash = {c3fc5d027709551f03411739f2f6881b}, journal = {Sci Rep}, keywords = {SHOULDREAD astrocytoma cancer-research glioma radiotherapy survival temozolomide}, month = jan, number = 1, pages = {777-777}, pmid = {29335518}, timestamp = {2018-05-18T23:50:27.000+0200}, title = {Recurrence patterns after maximal surgical resection and postoperative radiotherapy in anaplastic gliomas according to the new 2016 WHO classification}, url = {https://www.ncbi.nlm.nih.gov/pubmed/29335518}, volume = 8, year = 2018 }